Numbers of the form (12^i)*(13^j), with i, j >= 0.

Terms

a(0) =1a(1) =12a(2) =13a(3) =144a(4) =156a(5) =169a(6) =1728a(7) =1872a(8) =2028a(9) =2197a(10) =20736a(11) =22464a(12) =24336a(13) =26364a(14) =28561a(15) =248832a(16) =269568a(17) =292032a(18) =316368a(19) =342732a(20) =371293a(21) =2985984a(22) =3234816a(23) =3504384a(24) =3796416a(25) =4112784a(26) =4455516a(27) =4826809a(28) =35831808a(29) =38817792